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Tresset [83]
3 years ago
9

PLEASE HELP FAST ILL MARK AS BRAINLIEST

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

Answer:

the last one

Step-by-step explanation:

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Which of the following is equivalent to 10 3/2?
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A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a
Brrunno [24]

Answer:

A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a battery is normally distributed, with a mean of 50 months and a standard deviation of 9 months. If the company does not want to make refunds for more than 10% of its batteries under the full-refund guarantee policy, for how long should the company guarantee the batteries?

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Step-by-step explanation:

Using standard normal table,

P(Z < z) = 10%

=(Z < z) = 0.10

= P(Z <- 1.28 ) = 0.10

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Therefore, the company should guarantee the batteries for 38 months.

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Answer:

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Step-by-step explanation:

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Hope this helps. Have a nice day

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